Fix bugs in the dataset module.

gklearn/dataset/data_fetcher.py

@@ -15,7 +15,7 @@ import os.path as osp
 import urllib 
 import tarfile
 from zipfile import ZipFile
-from gklearn.utils.graphfiles import loadDataset
+# from gklearn.utils.graphfiles import loadDataset
 import torch.nn.functional as F
 import networkx as nx
 import torch
@@ -152,21 +152,27 @@ class DataFetcher():
 				with tarfile.open(filename_archive, 'r:gz') as tar:
 					if self._reload and self._verbose: 
 						print(filename + ' Downloaded.')
+					subpath = os.path.join(path, tar.getnames()[0])
+					if not osp.exists(subpath) or self._reload:
 						tar.extractall(path = path)
-					return os.path.join(path, tar.getnames()[0])
+					return subpath
 		elif filename.endswith('.tar'):
 			if tarfile.is_tarfile(filename_archive):
 				with tarfile.open(filename_archive, 'r:') as tar:
 					if self._reload and self._verbose:
 						print(filename + ' Downloaded.')
+					subpath = os.path.join(path, tar.getnames()[0])
+					if not osp.exists(subpath) or self._reload:
 						tar.extractall(path = path)
-					return os.path.join(path, tar.getnames()[0])
+					return subpath
 		elif filename.endswith('.zip'):			 
 			with ZipFile(filename_archive, 'r') as zip_ref:
 				if self._reload and self._verbose:
 					print(filename + ' Downloaded.')
+				subpath = os.path.join(path, zip_ref.namelist()[0])
+				if not osp.exists(subpath) or self._reload:
 					zip_ref.extractall(path)
-				return os.path.join(path, zip_ref.namelist()[0])
+				return subpath
 		else:
 			raise ValueError(filename + ' Unsupported file.')
 				
@@ -261,6 +267,11 @@ class DataFetcher():
 				else:
 					geometry = geo_txt
 					
+				# url.
+				url = td_node[11].xpath('a')[0].attrib['href'].strip()
+				pos_zip = url.rfind('.zip')
+				url = url[:pos_zip + 4]
+					
 				infos[td_node[0].xpath('strong')[0].text.strip()] = {
 					'database': 'tudataset',
 					'reference': td_node[1].text.strip(),
@@ -274,7 +285,7 @@ class DataFetcher():
 					'node_attr_dim': node_attr_dim,
 					'geometry': geometry,
 					'edge_attr_dim': edge_attr_dim,
-					'url': td_node[11].xpath('a')[0].attrib['href'].strip(),
+					'url': url,
 					'domain': domain
 					}